Maine September Weather

Maine weather averages and all-time records in the month of September from 1991–2020 based on data made available by the NOAA.

State:

Month:

Statewide September Averages
High temperature	68.0 °F
Low temperature	45.8 °F
Precipitation	3.7 inches

Maine Cities

September weather averages for various places in Maine, from 1991–2020.

City	Average (°F)		Record (°F)		Monthly (inches)
City	High	Low	High	Low	Precipitation	Snow
Augusta	70.6	51.3	96	28	3.9	n/a
Bangor	71.0	48.6	99	23	3.8	0.0
Belfast	70.5	48.8	98	24	4.0	0.0
Caribou	67.0	45.5	92	23	3.4	0.1
Farmington	69.9	45.2	100	20	3.5	0.0
Fort Kent	66.3	42.7	92	14	3.7	0.0
Gardiner	71.8	49.6	97	22	3.9	0.0
Houlton	68.3	44.0	95	20	3.4	n/a
Jackman	68.0	43.4	92	17	3.5	0.0
Madison	70.3	47.6	95	23	3.3	0.0
Millinocket	69.8	48.3	96	23	3.6	n/a
Portland	70.8	51.4	96	23	3.8	0.0
Rockport	69.4	52.1	91	28	4.6	0.0
Sanford	73.5	50.2	95	22	4.2	0.0
Waterville	71.9	49.3	96	23	3.8	0.0